A bit confused as I added:

if nargin

to my function code but it still inputs 0 regardless if there is less than 2 inputs

Original code:

function sinVal=sine_series(x,n)

sinVal=0;

for k = 1:n

sinVal = sinVal + ((-1)^(k-1))*(x^(2*k-1))/factorial(2*k-1);

end

fprintf('sin(%d)= %f ',x,sinVal)

Modify your code (sine_series, from Problems 2 & 3) so that it uses a default value of n5 if the user does not specify a value for n. (Hint: Use the function nargin.) To demonstrate that your code works: a) Evaluate the function with x = /6 and n-2; b) Evaluate the function with x Tt/6, and no input for n